conditional fix for docdir undefined in autoconf < 1.60

[debian/gnuradio] / Makefile.common

diff --git a/Makefile.common b/Makefile.common
index eb7390811bd50a800518d91f67bbacd5b6ab5036..ed17babe63f2194d6ace3fb2098dd9bdc6b759e8 100644 (file)
--- a/Makefile.common
+++ b/Makefile.common
@@ -117,5 +117,5 @@ COMPILE_MBH = $(RUN_GUILE) $(top_srcdir)/mblock/src/scheme/gnuradio/compile-mbh.
 # Base directory for example applications
 exampledir = $(datadir)/gnuradio/examples
 
-# Base directory for documentation
-gr_docdir = $(docdir)-$(VERSION)
+# Base directory for documentation (docdir undefined in autoconf < 1.60)
+gr_docdir = $(if $(docdir),$(docdir),$(datadir)/doc/$(PACKAGE))-$(VERSION)